{"id":"CVE-2019-9502","aliases":["A-130374366","ASB-A-130374366","EUVD-2019-18876","GHSA-4rfg-8q34-prmp"],"status":"published","title":"Broadcom wl driver is vulnerable to heap buffer overflow","description":"The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.","severity":{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.02597,"percentile":0.85434,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122","CWE-787"],"published":"2020-02-03T21:00:20Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":[":2020-07-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2020-07-05"}]}],"versions":["Kernel"]}],"products":[{"vendor":"broadcom","product":"bcm4339_firmware"},{"vendor":"broadcom","product":"wifi drivers"},{"vendor":"synology","product":"router_manager"}],"references":[{"url":"https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://kb.cert.org/vuls/id/166939/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9502"},{"url":"https://github.com/advisories/GHSA-4rfg-8q34-prmp"},{"url":"https://source.android.com/security/bulletin/2020-07-01","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-9502","title":"Broadcom wl driver is vulnerable to heap buffer overflow","description":"The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.","status":"published","published":"2020-02-03T21:00:20Z","modified":"2024-08-04T21:54:44.149Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:20:20.397093Z"}],"euvd":[{"id":"EUVD-2019-18876","description":"The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.","status":"published","published":"2020-02-03T21:00:20Z","modified":"2024-08-04T21:54:44Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:06:38.242317Z"}],"ghsa":[{"id":"GHSA-4rfg-8q34-prmp","title":"The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information...","description":"The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.","status":"published","published":"2022-05-24T17:07:53Z","modified":"2023-01-29T05:01:16Z","updated_at":"2026-11-02T14:44:46.468507Z"}],"nvd":[{"id":"CVE-2019-9502","description":"The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.","status":"published","published":"2020-02-03T21:15:11.547Z","modified":"2026-06-17T02:43:50.02Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":8.3,"vector":"AV:A/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:05:43.875329Z"}],"osv":[{"id":"ASB-A-130374366","description":"In driver/firmware of broadcom wifi chipset, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2020-07-01T00:00:00Z","modified":"2026-11-06T16:30:33.305097686Z","updated_at":"2026-11-06T16:59:08.777969Z"}]}}